<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="班级名称" prop="className">
        <el-input v-model="queryParams.className" placeholder="请输入班级名称" clearable @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item label="所属专业" prop="specialityId">
        <el-select v-model="queryParams.specialityId" clearable filterable remote :loading="loading"
          placeholder="请选择所属专业">
          <el-option v-for="item in optionsSpeciality" :key="item.id" :label="item.specialityName" :value="item.id">
          </el-option>
        </el-select>
      </el-form-item>

      <el-form-item label="所属年级" prop="gradeId">
        <el-select v-model="queryParams.gradeId" clearable filterable remote :loading="loading" placeholder="请选择所属年级">
          <el-option v-for="item in optionsGrade" :key="item.id" :label="item.gradeName" :value="item.id">
          </el-option>
        </el-select>
      </el-form-item>

      <el-form-item label="状态" prop="validFlag">
        <el-select v-model="queryParams.validFlag" placeholder="是否有效" clearable>
          <el-option label="无效" :value="0" />
          <el-option label="有效" :value="1" />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd"
          v-hasPermi="['student:class:add']">新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="success" plain icon="el-icon-edit" size="mini" :disabled="single" @click="handleUpdate"
          v-hasPermi="['student:class:edit']">修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="danger" plain icon="el-icon-delete" size="mini" :disabled="multiple" @click="handleDelete"
          v-hasPermi="['student:class:remove']">删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="warning" plain icon="el-icon-download" size="mini" @click="handleExport"
          v-hasPermi="['student:class:export']">导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="classList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="主键" width="55" align="center" prop="id" />
      <el-table-column label="班级名称" align="center" prop="className" />
      <el-table-column label="所属年级" align="center" prop="gradeName" />
      <el-table-column label="所属专业" align="center" prop="specialityName" />
      <el-table-column label="创建人" align="center" prop="creatorName" />
      <el-table-column label="状态" width="55" align="center" slot-name="validFlag">
        <template slot-scope="scope">
          <!-- 用active-value="1" inactive-value="0"时的active-value值类型为string，如果要求active-value值类型为number时，必须在其前面加上冒号(:)来转换 -->
          <el-switch v-model="scope.row.validFlag" :active-value="1" :inactive-value="0"
            @change="handleValidFlagChange(scope.row)"></el-switch>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center" prop="createTime" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)"
            v-hasPermi="['student:class:edit']">修改</el-button>
          <el-button size="mini" type="text" icon="el-icon-folder-opened" @click="handleView(scope.row)"
            v-hasPermi="['student:class:view']">详情</el-button>
          <el-button size="mini" type="text" icon="el-icon-document-add" @click="handleAddCourse(scope.row)"
            v-hasPermi="['student:class:addcourse']">添加课程</el-button>
          <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)"
            v-hasPermi="['student:class:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total > 0" :total="total" :page.sync="queryParams.pageNum" :limit.sync="queryParams.pageSize"
      @pagination="getList" />

    <!-- 添加或修改班级对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="班级名称" prop="className">
          <el-input v-model="form.className" placeholder="请输入班级名称" />
        </el-form-item>
        <el-form-item label="所属专业" prop="specialityId">
          <el-select v-model="form.specialityId" clearable filterable remote :loading="loading" placeholder="请选择所属专业"
            style="width: 100%">
            <el-option v-for="item in optionsSpeciality" :key="item.id" :label="item.specialityName" :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="所属年级" prop="gradeId">
          <el-select v-model="form.gradeId" clearable filterable remote :loading="loading" placeholder="请选择所属年级"
            style="width: 100%">
            <el-option v-for="item in optionsGrade" :key="item.id" :label="item.gradeName" :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="状态" prop="validFlag">
          <el-radio-group v-model="form.validFlag">
            <el-radio :label="1">有效</el-radio>
            <el-radio :label="0">无效</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>

    <!-- 添加课程对话框 -->
    <el-dialog :title="addCourseTitle" :visible.sync="addCourseOpen" width="70%" append-to-body>
      <el-form :model="queryCourseParams" ref="queryCourseForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
        <el-form-item label="课程名称" prop="name">
          <el-input v-model="queryCourseParams.name" placeholder="请输入课程名称" clearable @keyup.enter.native="handleCourseQuery" />
        </el-form-item>
        <el-form-item label="所属专业" prop="specialityId">
          <el-select v-model="queryCourseParams.specialityId" clearable filterable remote :loading="loading"
            placeholder="请选择所属专业">
            <el-option v-for="item in optionsSpeciality" :key="item.id" :label="item.specialityName" :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="课程状态" prop="validFlag">
          <el-select v-model="queryCourseParams.validFlag" placeholder="是否有效" clearable>
            <el-option label="无效" :value="0" />
            <el-option label="有效" :value="1" />
          </el-select>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" icon="el-icon-search" size="mini" @click="handleCourseQuery">搜索</el-button>
          <el-button icon="el-icon-refresh" size="mini" @click="resetCourseQuery">重置</el-button>
        </el-form-item>
      </el-form>
      <el-table v-loading="courseLoading" :data="courseList" @selection-change="handleCourseSelectionChange">
        <el-table-column type="selection" width="55" align="center" />
        <el-table-column label="主键" width="55" align="center" prop="id" />
        <el-table-column label="课程名称" align="center" prop="name" />
        <el-table-column label="课程图片" align="center" prop="resultImage" width="100">
          <template slot-scope="scope">
            <image-preview :src="scope.row.resultImage" :width="50" :height="50" />
          </template>
        </el-table-column>
        <!-- <el-table-column label="课程排序" align="center" prop="sort" /> -->
        <!-- <el-table-column label="所属专业id" align="center" prop="specialityId" /> -->
        <el-table-column label="所属专业名称" align="center" prop="specialityName" />
        <el-table-column label="创建人" align="center" prop="creatorName" />
        <el-table-column label="课程状态" align="center" prop="validFlag">
          <template slot-scope="scope">
            <!-- 用active-value="1" inactive-value="0"时的active-value值类型为string，如果要求active-value值类型为number时，必须在其前面加上冒号(:)来转换 -->
            <el-switch v-model="scope.row.validFlag" :active-value="1" :inactive-value="0"
              @change="handleValidFlagChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="课程简介" align="center" prop="remark">
          <template slot-scope="scope">
            <div v-if='scope.row.remark && (scope.row.remark.length > 10)'>
              <el-popover title="详细" trigger="hover" placement="top" width="200">
                <p>{{ scope.row.remark }}</p>
                <div slot="reference">
                  <p size="medium">{{ scope.row.remark | remark }}</p>
                </div>
              </el-popover>
            </div>
            <div v-else>
              <span>{{ scope.row.remark }}</span>
            </div>
          </template>
        </el-table-column>
        <el-table-column label="创建时间" align="center" prop="createTime" />
      </el-table>

      <pagination v-show="courseTotal > 0" :total="courseTotal" :page.sync="queryCourseParams.pageNum"
        :limit.sync="queryCourseParams.pageSize" @pagination="getCourseList" />
      <!-- <el-form ref="form" :model="addCourseForm" :rules="rules" label-width="80px">
        <el-form-item label="班级名称" prop="className">
          <el-input v-model="addCourseForm.className" placeholder="请输入班级名称" />
        </el-form-item>
        <el-form-item label="所属专业" prop="specialityId">
          <el-select v-model="addCourseForm.specialityId" clearable filterable remote :loading="loading"
            placeholder="请选择所属专业"   style="width: 100%">
            <el-option v-for="item in optionsSpeciality" :key="item.id" :label="item.specialityName" :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="所属年级" prop="gradeId">
          <el-select v-model="addCourseForm.gradeId" clearable filterable remote :loading="loading" placeholder="请选择所属年级"
          style="width: 100%">
            <el-option v-for="item in optionsGrade" :key="item.id" :label="item.gradeName" :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="状态" prop="validFlag">
          <el-radio-group v-model="addCourseForm.validFlag">
            <el-radio :label="1">有效</el-radio>
            <el-radio :label="0">无效</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form> -->
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" v-hasPermi="['student:class:submitAddCourse']" @click="submitAddCourse">确 定</el-button>
        <el-button @click="addCourseCancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listClass, getClass, delClass, addClass, updateClass, addReClassCourse } from "@/api/student/class";
import { listCourse, listNoCourse } from "@/api/student/course";
import { listSpeciality } from "@/api/student/speciality";
import { listGrade } from "@/api/student/grade";

export default {
  name: "Class",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 班级表格数据
      classList: [],
      // 课程表格数据
      courseList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,

      // 添加课程弹出层标题
      addCourseTitle: "",
      // 是否显示添加课程弹出层
      addCourseOpen: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        className: null,
        gradeId: null,
        specialityId: null,
        creatorId: null,
        validFlag: null
      },
      // 课程总条数
      courseTotal: 0,
      // 查询参数
      queryCourseParams: {
        pageNum: 1,
        pageSize: 10,
        name: null,
        sort: null,
        specialityId: null,
        resultImage: null,
        specialityName: null,
        creatorId: null,
        validFlag: null,
      },
      // 课程选中数组
      courseIds: [],
      // 课程非单个禁用
      courseSingle: true,
      // 课程非多个禁用
      courseMultiple: true,
      // 表单参数
      form: {},
      // 添加课程表单参数
      addCourseForm: {},
      // 表单校验
      rules: {
      },
      // 搜索的专业列表
      optionsSpeciality: [],
      // 搜索的年级列表
      optionsGrade: [],
      // 课程遮罩层
      courseLoading: true,
      //当前班级ID
      curClassId :null
    };
  },
  created() {
    this.getList();
    this.initOptionsSpeciality();
    this.initOptionsGrade();
  },
  methods: {
    /** 查询班级列表 */
    getList() {
      this.loading = true;
      listClass(this.queryParams).then(response => {
        this.classList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    /** 查询课程列表 */
    getCourseList() {
      this.courseLoading = true;
      console.log(this.queryCourseParams);
      var listData = {
        pageNum: this.queryCourseParams.pageNum,
        pageSize: this.queryCourseParams.pageSize,
        classId: this.curClassId
      }
      listNoCourse(listData).then(response => {
        this.courseList = response.rows;
        this.courseTotal = response.total;
        this.courseLoading = false;
      });
    },
    // 课程多选框选中数据
    handleCourseSelectionChange(selection) {
      this.courseIds = selection.map(item => item.id)
      this.courseSingle = selection.length !== 1
      this.courseMultiple = !selection.length
    },
    // 取消按钮
    cancel() {
      this.addCourseOpen = false;
      this.reset();
    },
    // 添加课程取消按钮
    addCourseCancel() {
      this.addCourseOpen = false;
      this.addCourseReset();
    },
    /** 搜索按钮操作 */
    handleCourseQuery() {
      this.queryCourseParams.pageNum = 1;
      this.getCourseList();
    },
    /** 课程搜索重置按钮操作 */
    resetCourseQuery() {
      this.resetForm("queryCourseForm");
      this.handleCourseQuery();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        className: null,
        gradeId: null,
        specialityId: null,
        creatorId: null,
        createTime: null,
        updateTime: null,
        createBy: null,
        updateBy: null,
        validFlag: 1
      };
      this.resetForm("form");
    },
    addCourseReset() {
      this.addCourseForm = {
        id: null,
        className: null,
        gradeId: null,
        specialityId: null,
        creatorId: null,
        createTime: null,
        updateTime: null,
        createBy: null,
        updateBy: null,
        validFlag: 1
      };
      this.resetForm("addCourseForm");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加班级";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getClass(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改班级";
      });
    },
    /** 新增课程按钮操作 */
    handleAddCourse(row) {
      console.log(row.id);
      this.curClassId = row.id;
      this.getCourseList();
      this.addCourseReset();
      this.addCourseOpen = true;
      this.addCourseTitle = "添加课程";
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateClass(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addClass(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除班级编号为"' + ids + '"的数据项？').then(function () {
        return delClass(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => { });
    },
    /** 提交课程按钮操作 */
    submitAddCourse(row) {
      const courseIds = row.id || this.courseIds;
      console.log(courseIds);
      var submitAddCourseData = {
        courseIds: courseIds,
        classId: this.curClassId
      }
      this.$modal.confirm('是否确认添加课程主键为"' + courseIds + '"的数据项？').then(function () {
        return addReClassCourse(submitAddCourseData);
      }).then(() => {
        this.getCourseList();
        this.$modal.msgSuccess("添加成功");
        this.addCourseOpen = false;
      }).catch(() => { });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('student/class/export', {
        ...this.queryParams
      }, `class_${new Date().getTime()}.xlsx`)
    },
    // 初始化专业列表
    initOptionsSpeciality() {
      listSpeciality({ pageNum: 1, pageSize: 10000 }).then((res) => {
        this.optionsSpeciality = res.rows;
        console.log("输出：")
        console.log(this.optionsSpeciality);
      });
    },
    // 初始化年级
    initOptionsGrade() {
      listGrade({ pageNum: 1, pageSize: 10000 }).then((res) => {
        this.optionsGrade = res.rows;
        console.log("输出：")
        console.log(this.optionsGrade);
      });
    },
    handleView(row) {
      this.handleToDetailPage(row.id)
    },
    // 跳转到任务详情页面(路由跳转)
    handleToDetailPage(id) {
      this.$router.push({
        name: 'classDetail',
        query: {
          id: id
        }
      });
    }
  },
  filters: {
    remark(value) {
      if (!value) {
        return
      } else {
        if (value.length > 10) {
          var target = value.substr(0, 10) + '....'
        } else {
          target = value
        }
        return target;
      }
    },
  }
};
</script>
